Buster Posey is opting out.

The San Francisco Giants catcher told reporters on a Zoom call Friday morning that he will not be participating in the 2020 Major League Baseball season. The Giants say they support the former MVP's decision.

ESPN's Jeff Passan notes that Posey has missed the last few days of workouts as he contemplated his decision.

The Athletic's Andrew Baggarly notes that Posey and his wife are adopting identical twin girls and that is part of the reason why he has missed time in camp. Baggarly adds the twins were born prematurely and are stable but will be in hospital for some time.

The 33-year-old catcher has spent the past 11 seasons in San Francisco and has helped the franchise to three World Series titles in 2010, 2012 and 2014.

He also won the 2012 National League MVP Award when he led the league with a .336 batting average while hitting 24 home runs and driving in 103.

Last season, Posey hit .257 in 114 games.

But Posey wasn't the only big leaguer to opt out of the 2020 season on Friday.

Chicago White Sox right-hander Michael Kopech informed his team that he is also opting out and like San Francisco, the White Sox are supportive of Kopech's decision.

Posey and Kopech join the likes of David Price, Ryan Zimmerman, Ian Desmond and several others to opt out of the shortened 2020 campaign. MLB's 60-game regular season is scheduled to begin on July 23.